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The diagram shows the copper wires in a plug - OCR Gateway - GCSE Chemistry - Question 2 - 2021 - Paper 2
Question 2
The diagram shows the copper wires in a plug. Why is this wire made of copper? A. Copper conducts electricity. B. Copper conducts heat. C. Copper is hard. D. Co... show full transcript
Worked Solution & Example Answer:The diagram shows the copper wires in a plug - OCR Gateway - GCSE Chemistry - Question 2 - 2021 - Paper 2
Step 1
Why is this wire made of copper?
Answer
Copper is used for the wire in plugs primarily because it conducts electricity very efficiently. This means electrical appliances can operate smoothly and effectively. The high conductivity of copper ensures minimal energy loss as electric current passes through. While copper does have other properties such as good heat conduction, hardness, and a relatively slow reaction with water, these factors are not the main reasons for its use in electrical wiring. Therefore, the correct response is:
A. Copper conducts electricity.